Elastic fabric.



W. KOPS.

ELASTIC FABRIC.

APPLICATION FILED SEPT. 30, 1911 6 ATTORNEY TE STATES PATENT O Ewan-muss. KOPS, or NEw YoRKf N. -Y., ASSIGNOR T0 Kors altos, on NEW.Yonx, N. Y;,.

A FIRM.

ELASTIC FABRIC.

To all whom it may concern:

Be it known that I, 'WAIJDEMAR Kors, a citizen of theUnited States,residing in the borough of Manhattan, in the city, county, and State ofNew York, have invented an Improvement in Elastic Fabrics, of which thefollowing is a specification.

strands at their bent ends. I

In carrying out my inventionI provide a flat strip-1 elastic fabric orWebbing, preferably parallel sided and invwhich the elastic strands arein line with the weft threads and intermediate of the margins orselvage,

- with the return ends as loops engaged or caught by independent orextra threads as warps laid therein, which extra threads follow theoutline of the elastic meYnber.

In the drawings, Figure 1 is a plan illustrating part of a length offabric or webbing, according to my invention. Fig. 2 is a cross sectionthereof and Fig. 3 is a cross section-illustrating a form of myinvention.

Similar numerals and letters of reference indicate the same parts in thedrawing.

The" edges or selvage are shown at 2 and 3, and a and b are the marginalinelastic or sewing sections, 0 represents the elastic sections, 4 theelastic strands which are laid back and forth across theelasticfsections c and 5 and 6 are .the extra threads iaswarps ofincreased area around which the end loops formed of the elastic strandare passed in laying the same back and'forth across the elastic section.

The webbing of my improvement is formed with warp threads 7 and withweft threads 8. It is immaterial, according to my invention, Whether theelastic strands 4 are woven under tension or not, but whatever tensionmay exist is at all times under control, or whether the usual weftthreads 7 pass clear across the fabric from selvage to selvage or not.It is also immaterial whether the elastic sections 0 are parallel sided,or. gradually dive Specification of Letters Patent. Application filedSeptember 30, 1911. Serial No. 652,164.

rging and converg-' 'ing, as shown in Fig.

Patented ma 2, 1912.

g The marginal inelastic sewing sections ab are formed of the warpthreads 7 and weft threads 8.

The elastic sections a may be composed ,of the warp threads 7 andelastic strands 4 which are laid back and forth through the warp threadsfor a predetermined portion of the fabric or webbing, and I may alsoweave the fabric or webbing with the cotton weft threads running fromselvage to sel-' vage. I may also apply appreciable tension to theelastic strands during the movement of the shuttle in the weavingoperation, and

this tension is at all times under control and iscreated by devicesassociated with the' shuttle.

The elastic fabric or webbing as woven with the elastic strand thereoflaid back. and forth across the elastic section, produces bent or returnends of the elastic strands at the margins'of the elastic section, andin this connection I provide the extra threads 5 and 6 as warps. Thesethreads are preferably of increased area .in cross-section.

They are laid into the fabric in the weaving with the loops of theelastic strands 4 place around the same, and these threads are in thefabric or webbing or embedded in the surface of the same. They serve toprevent theelasticstrands from pulling into or through the webbing, andthese extra threads constitute the margin or outline of the elasticsections whether the same be parallel sided as shown, or diverging andconverging, as shown in Fig. 1.

In Figs. 1 and 2 the extra threads 5 and 6 as warps are shown mainlyover or embedded in the surface of the fabric, while in the section Fig.3 these threads are illustrated as in the fabric, that is, woven in anddirectly forming a part of the fabric. These threads 5 and 6 are put inas separate warps and graduated as to their diversions preferably byfan-shaped reeds or by a jacquard device.

I claim as my invention: 7

1. An elastic fabric or webbing having marginal inelastic or sewingsections and an intermediate elastic section in which latter the elasticstrands are laid back and forth 'ble longitudinal threads of suitablecharacter passing through the loopsof the elastic strands for holding oranchoring the respective open ends of the elastic strands independent ofthe usual warp or Weftthreads of'the Webbing.- e

2. An elastic fabric or Webbing having marginal inelastic or sewingsections and an intermediate elastic section in which latter the elasticstrands are laid-back and forth parallel with the Weft threads and atright angles to the warp threads, and extra threads as warps runningparallel with the margins of the elastic section and around which theelastic strands as loops pass at their bent or returned. ends as thesame extend back and forth across the elastic section.

3. An elastic fabric or Webbing having an elastic section in which theelastic strands are laid back and forth with bent or return ends andmarginal threads of increased area around which the said bent or returnends pass.

Signed by me this 22nd day of September 1911.

VALDEMAR KOPS;

\Vitnesses ARTHUR H. SERRELL, MARY E. LELAND.

